P1238_N6247322R5227_RFI_Submission - Non-Amendment Responses_08MAY25.xlsx
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- Solicitation number
- N6247324R5227
About this file
This is a Request for Information (RFI) document for a federal contract opportunity to design and construct Battery Energy Storage Systems (BESS) at Marine Corps Air Ground Combat Center (MCAGCC) in Twentynine Palms, California. The project involves installing 10 MW of BESS across two locations, with a base bid of 6.5 MW and optional additional 4 MW, structured as a Firm-Fixed Price Design-Build contract. The BESS will integrate with existing solar photovoltaic (PV) systems and the installation's microgrid, with objectives including grid stability, energy resilience, peak demand reduction, and clean energy charging.
Key details include a Construction Cost Limitation (CCL) of $43,000,000 covering the base bid and options, with a proposal submission deadline of June 3, 2025, and anticipated award in the fourth quarter of Fiscal Year 2025. The project requires replacing existing 24-strand fiber optic cables with 288-strand cables, installing new metering for 54 existing PV systems, and modifying the Central Control System (CCS) to integrate BESS operations. The contract is administered by the Department of the Navy Naval Facilities Engineering Command and seeks to enhance the base's electrical distribution infrastructure through advanced energy storage technology.
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RFI (pre-award) Form_For KTR
SOLICITATION: N62473-24-R-5227
CONTRACT / PROJECT TITLE: DESIGN-BUILD MILCON PROJECT P-1238 CONSTRUCTION OF GRID STABILITY & RESILIENCY 10 MW BATTERY ENERGY STORAGE, VARIOUS BUILDINGS AT MARINE CORPS AIR GROUND COMBAT CENTER (MCAGCC), TWENTYNINE PALMS, CA
DOCUMENT DATE: 11 APRIL 2025
| TO BE FILLED OUT BY THE BIDDING KTR | TO BE FILLED OUT BY THE GOV'T | ||||||||||||
| RFI # | RFP Part # | Chapter or Section | Sub-Section # | CLARIFICATION REQUEST | Cost Impact? Y/N | Schedule Impact? Y/N | RFI reason from KTR's Perspective | Comment [fill out if "Other" was chosen, specify reason(s)] | RFI Topic most closely relevant to: | Government Response | DATE RECEIVED | DATE TO KTR | Amendment Number |
| 1 | Part 1 | Chapter-1 | 1. Description of work | Part 1, Chapter 1, under 1. Description of work indicates the Base Bid is for 4 MW/16 MWh at CoGen Site 1, 2 MW/8 MWh at CoGen Site 2 with Option 1 for an additional 2 MW/8 MWh at Site 1 and Option 2 for an additional 2 MW/8 MWh at CoGen Site 2. That's a total of 6 MW/24 MWh at CoGen Site 1 and 4 MW/16 MWh at CoGen Site 2 (project total is 10 MW/40 MWh). |
The Offer Schedule provided under Amendment 0006 indicates the Base Bid is for 6 MW/24 MWh at CoGen Site 1, 4 MW/16 MWh at CoGen Site 2 with Option 1 for an additional 2 MW/8 MWh at Site 1 and Option 2 for an additional 2 MW/8 MWh at Cogen Site 1 again. That's a total of 10 MW/40 MWh at CoGen Site 1 and 2 MW/8 MWh at CoGen Site 2 (project total is 12 MW/48 MWh).
Please clarify total MW/MWh for the Base Bid and each option. Y Y Conflicting Information "Other" - Bid Form Contracting The Offer Schedule should be matched with Part 1, Chapter 1 Desciption of work, as below: "the Base Bid is for 4 MW/16 MWh at CoGen Site 1, 2 MW/8 MWh at CoGen Site 2 with Option 1 for an additional 2 MW/8 MWh at Site 1 and Option 2 for an additional 2 MW/8 MWh at CoGen Site 2. That's a total of 6 MW/24 MWh at CoGen Site 1 and 4 MW/16 MWh at CoGen Site 2 (project total is 10 MW/40 MWh"
| Revised Offer Schedule, Phase Two Enclosure 3_P1238_Blank OfferSchedule_Revised is included in Amendment 0009 | 4/11/25 | 4/17/25 | 0009 | |||||||||
| 2 | Part 1 | Please provide the sign-in sheet from the site visit held on April 8, 2025. | N | N | Other; Please specify in the next column | Contracting | The sign-in sheet from the site visit held April 8, 2025 will be emailed to the prime contractors who qualified for Phase II and attended the site visit. | 4/11/25 | 5/8/25 | N/A | ||
| 3 | Part 1 | Chapter-3 | Part 1, Section 3: Inquiries states that “all RFIs are due to the Government POC by April 17, 2025. The government does not intend to respond to inquiries submitted less than 10 days before the Phase Two proposal due date of May 15, 2025.” Please confirm it is acceptable for the RFI due date to be May 5, 2025, in lieu of April 17, 2025. | N | N | Other; Please specify in the next column | Contracting | The RFI deadline for submission has been amdended to Tuesday, April 29, 2025. The Proposal due date has been amended to Tuesday, June 3, 2025, Please refer to Amendment 0009. |
DELETE: The government does not intend to respond to inquiries submitted less than 10 days before the Phase Two proposal due date of May 15, 2025.
| ADD: The government does not intend to respond to inquires submitted after the RFI deadline of Tuesday, April 29, 2025. | 4/11/25 | 4/17/25 | 0009 | ||||||
| 4 | Part 1 | Amendment 0006 (Page 14 of 70), under Factor 6: Small Business Utilization and Participation states that “each project submitted under Factor 2, Experience, shall be included on Exhibit E.” Please confirm only projects submitted on behalf of the Contractor listed under Factor 2 shall be included on Exhibit E. | N | N | Intent needs clarification | Contracting | Every project submitted under Factor 2 must be included on Exhibit "E". |
| Exhibit E is included as an enclosure to Amendment 0009. | 4/11/25 | 4/17/25 | 0009 | |||||||||
| 5 | Part 1 | Standard Form 30 for Amendment 0006, states, “A revised SF1442 is attached.” A revised SF1442 was not included in the documents provided with Amendment 0006. Please provide the revised SF1442. | N | N | Attachments are referenced but missing/not provided | Contracting | A revised Standard Form 1442 will be included in this Amendment. | 4/11/25 | 4/17/25 | 0009 | ||
| 6 | Part 1 | Amendment 0006 (Page 16 of 70), under Factor 7: Price states to submit “Standard Form (SF) 1442 (Solicitation, Offer and Award)” and the Bid Bond. Please confirm the file attached with amendment 0006 titled “Phase Two Enclosure 3 – P1238_Blank_OfferSchedule” shall also be submitted under Factor 7: Price. | N | N | Other; Please specify in the next column | Contracting | DELETE: A revised SF1442 will be included as Enclosure with this amendment. |
• Standard Form (SF) 1442 (Solicitation, Offer and Award)
• Bid Bond (in the amount of 20% of the proposal price or $3,000,000, whichever is less)
ADD: A revised SF1442 will be included as Enclosure with this amendment.
• Standard Form (SF) 1442 (Solicitation, Offer and Award)
• Phase Two Enclosure 3_P1238_Blank OfferSchedule_Revised
| • Bid Bond (in the amount of 20% of the proposal price or $3,000,000, whichever is less) | 4/11/25 | 4/17/25 | 0009 | |||||||||||
| 7 | Part 1 | Will the government please extend the RFI submission due date from April 17 to April 24? | N | N | Other; Please specify in the next column | Contracting | The RFI submission deadline has been amended to Tuesday, April 29, 2025, Please refer to Amendment 0009. | 4/11/25 | 4/17/25 | 0009 | ||||
| 8 | Part 3 | D30 | Page 274 - 276 | Stated BESS shall be housed within shelter. Shelter to have its own cooling and exhaust systems. Is the intent that the BESS batteries be mounted within an included building called shelter? BESS batteries, per manufactures, are not to be installed within a structure, building, or shelter due to fire containment emergency procedures where a lithium battery fire is not treated with water but allowed to burn out under supervision and monitoring of designated emergency personnel. Can you confirm this conflict and provide direction? | Y | Y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 9 | Part 3 | D30 | Page 274 - 276 | The system description states to provide ductless DX high wall units, but HVAC description calls out insulated supply and returns. Is this for an enclosed shelter over the BESS batteries? There seems to be a conflict with BESS manufacturers having the batteries in an enclosed building/shelter? Can you confirm this conflict and provide direction? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | |||||
| 10 | Part 3 | D30 | Page 274 - 276 | The climate conditions described in D30 section for heat/cooling and ventilation describe a shelter over the BESS battery. Are these climate and ventilation conditions for the BESS battery storage itself or for a shelter over the BESS. There seems to be a conflict with BESS manufacturers allowing a shelter over the batteries. Can you confirm this conflict and provide direction? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | |||||
| 11 | Part 3 | D30 | Page 274 - 276 | BESS storage systems must be independently climate controlled. The BESS systems have climate controls that are monitored system wide for control of heat and cooling along with ventilation. Does the BESS system have a requirement where they are to be tied into the base DDC controls and monitored via BACnet digital controls protocol? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | |||||
| 12 | Part 3 | D30 | Page 274 - 276 | Ventilation requirements indicate to provide 12 ACH emergency function and 6ACH normal exhaust rate, ductless high-wall units cannot provide this amount of outside air. Can you confirm if the use of either ducted DX splits or DX packaged units is acceptable for providing conditioned outside air requirement for BESS storage units? The BESS manufactures have their own designed heating and cooling systems ways and means for meeting requirements. | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | |||||
| 13 | Part 3 | D30 | Page 274 - 276 | In general, at the site walk, we had the opinion that work personnel on base prefer to work indoors with BESS battery storage units within and enclosed or open type shelter due to the climate conditions of Twentynine Palms base. The RFP seems to be written around providing a shelter over the BESS battery storage. However, there seems to be conflict for fire safety / emergency needs for when lithium batteries could catch fire while being housed inside a shelter. Several BESS fires across the world in last several years has shown that maybe best practices is to install BESS in outside open areas without shelters. In case of fires, the recommended practice is let the lithium battery unit fire 'burn out'. Water suppression is not recommended for extinguishing that fire, but rather keeping the other areas cool. If this is a safety and fire concern for future use of BESS at Twentynine Palms microgrid, can you clarify and provide directive where sheltered enclosure conflict with BESS in this design? | y | y | Intent needs clarification | Contracting | 4/14/25 | |||||
| 14 | Part 3 | D30 | Page 274 - 276 | There is a conflict with wall mounted DX units and manufactured BESS devices utilizing roof mounted-designed upblast fans? Can you clarify that the BESS manufacture provision for ventilation whether roof or wall mounted will meet the overall design criteria? | y | y | Intent needs clarification | Contracting | 4/14/25 | |||||
| 15 | Part 3 | D30 | Page 274 - 276 | In general, at the site walk, we had the opinion that work personnel on base prefer to work indoors with BESS battery storage units within and enclosed or open type shelter due to the climate conditions of Twentynine Palms base. In lieu of shelter over the BESS, would the base operation staff require a Conex style permanent office trailer at each BESS location for work conditions at the base? If so, what are or what would be those requirements include? We have seen instances where a worker office location be beneficial for remote locations. | y | y | Intent needs clarification | Contracting | 4/14/25 | |||||
| 16 | Part 3 | Chapter-1 | page 257 | To provide pricing and a basis of design for this proposal, contractor needs and requests information on location and existing conditions at the Cogen plants where BESS will enter and tie into systems for fiber optic/comm. Can you please provide floor plans, as-buits, or information to show locations of the systems tie-in points, layouts, equipment rack areas, etc. in amendment asap? | y | y | Intent needs clarification | Contracting | The existing PV site locations and PV inverters locations are provided as Attachment "D" in Part 6 of the RFP. | 4/14/25 | 5/8/25 | N/A | ||
| 17 | Part 3 | Chapter-1 | page 257 | There is a requirement for BESS safety and explosive distance setbacks from occupied and special interest areas per UFC of 100'. Can you confirm that if this BESS design can meet the 100' setback, then the requirement for walls of CMU or concrete will not be required? And that there is not a requirement for walls of CUM or concrete whether the BESS meets or does or does not meet the 100' setback | y | y | Intent needs clarification | Fire Protection | 4/14/25 | |||||
| 18 | Part 3 | Chapter-1 | page 258 | The 8MW PV is indicated to be controlled by the inverter. Can you clarify it project requirement is to replace this inverter is not capable of controlling the 8MW of PV? Can you clarify that this project requirement is not to replace any PV inverters in the existing systems? | y | y | Intent needs clarification | Electrical Engineering | There is no new inverter required for existing PV system. | 4/14/25 | 5/8/25 | N/A | ||
| 19 | Part 3 | Chapter-1 | page 258 | There is a stated requirement to coordinate operational concerns for existing ESPC / PPA existing contracts with this design? Can you please provide information on all ESPC / PPA contracts this contract needs to coordinate along with details, drawings, specs, existing conditions, and terms in next amendment? This is needed for system design and pricing. | y | y | Intent needs clarification | Contracting | 4/14/25 | |||||
| 20 | Part 3 | Chapter-1 | page 259 | Which subnet is the BESS control network to be integrated into? | y | y | Intent needs clarification | Electrical Engineering | The BESS control network will be integrated into the Cogen microgrid control system. The Base will provide subnet and IP address to the awarded contractor. | 4/14/25 | 5/8/25 | N/A | ||
| 21 | Part 3 | Chapter-1 | page 259 | Operational Considerations - Use Cases indicate that BESS will ramp output when cloud cover causes a drop in PV production. Is there is a requirement to install a weather station including sensors, or will the BESS output be updated to respond to power fluctuations by inverter. | y | y | Intent needs clarification | Electrical Engineering | The BESS outputs will be based on the meter at the PV system. | 4/14/25 | 5/8/25 | N/A | ||
| 22 | Part 3 | Chapter-1 | page 261 | Can the government provide branch-level meter data for each breaker at switchgear and information on critical and non-critical loads? | y | y | Intent needs clarification | Electrical Engineering | See Attachment F, P1232 Microgrid Expansion As-builts drawings in Part 6 of the RFP. | 4/14/25 | 5/8/25 | N/A | ||
| 23 | Part 3 | Chapter-1 | page 262 | Can the government provide the critical load meter data to ensure BESS can back start the critical loads? | y | y | Intent needs clarification | Electrical Engineering | The critical loads will be Cogen plants for black start. Current generator size at Cogen 1 is 1MW and Cogen 2 is 750kW. | 4/14/25 | 5/8/25 | N/A | ||
| 24 | Part 3 | Chapter-1 | page 263 | The base bid item under section 1.3 indicates adding meters as a part of the scope. Will the government provide locations where meters are expected to be added and provide the meter specifications? | y | y | Intent needs clarification | Electrical Engineering | All PV system will need new meters, specification for meter will be EMON DMON 5000 or better. | 4/14/25 | 5/8/25 | N/A | ||
| 25 | Part 3 | Chapter-1 | Pg 267 | Existing Site Conditions - Natural Constraints lists the BESS at 3.5 MW but page 263 indicates 4 MW should be provided. Can you confirm and clarify he MW of the BESS and if the project is allowed to fall short of the required capacity by a minimum of 2.5% if the standard system sizes of BESS do not align with the numerical capacity of the BESS. | y | y | Intent needs clarification | Electrical Engineering | See the response to RFI 27. | 4/14/25 | ||||
| 26 | Part 3 | Chapter-1 | Pg 276 | Vent requirement 2b indicates a new Volatile Organic Compound monitoring and alarm system is required. Is the requirement for the BESS yard and or within the BESS unit just itself? What is the guidance and base requirement or concern? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | |||||
| 27 | Part 3 | D50 | page 283 | D50 states BESS output rating capacity of 10MW/40MWH. Noting that not all BESS manufactures can evenly match the capacities exactly since some are often at odd numbers. If the BESS manufacturer ratings say come close to 10MW/40MWH as example of 9.8MW/39.2MHW can this be considered meeting the requirement? Or should the BESS add more to ensure meeting or exceeding 10WM/40MWH? Note that adding extra additional adds more pricing to the governments budget. | y | y | Intent needs clarification | Electrical Engineering | The BESS size shall have rating as close to 10MW/40MWH as possible. The proposed size of the BESS will be considered and upon on the Base acceptance. | 4/14/25 | 5/8/25 | N/A | ||
| 28 | Part 3 | D50 | page 284 | Can you confirm the expectation is to provide a switch with dedicated ways to feed each BESS system? Is it acceptable to have multiple transformers fed from a single switch way? | y | y | Intent needs clarification | Electrical Engineering | Each BESS system should have an isolation switch. Depending on the design configuration, the DOR can provide each BESS system with mulitple transformers or single transformer with main switch in compliance with UFC and NEC requirements. | 4/14/25 | 5/8/25 | N/A | ||
| 29 | Part 3 | D50 | page 286 | Requirement noted to provide ESS for project per UFC 4-021-02. Who is the base ESS system provider and contact? | y | y | Intent needs clarification | Electrical Engineering | The Base will provide the contact information for ESS system after the project is awarded. | 4/14/25 | 5/8/25 | N/A | ||
| 30 | Part 3 | D50 | page 286 | Can you confirm this contract is only required to install conduit, pull wire, and end unit enclosures for the ESS system provider only and that the government will contract by 3rd party the actual installation of ESS systems? That is pull the wire, provide the devices, terminate, and complete system startup, testing, and confirmed operation? | y | y | Intent needs clarification | Electrical Engineering | The construction contractor will provide CCTV including wiring, conduits, termination and complete startup, testing and onfirmed operation. | 4/14/25 | 5/8/25 | N/A | ||
| 31 | Part 3 | D50 | page 286 | What is the base requirement / needs for CCTV ESS security with BESS storage systems? How many CCTV camera / poles required? Will this be monitored at the Cogen plant operations room? Where or what kinds of existing systems and equipment / locations provided? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 32 | Part 3 | D50 | page 286 | Noted that this contract is to provide 2 yrs warranty and operations - maintenance support after start-up/commissioning/project completion. What are the base requirements for O&M period of 2 years? What are the expectations to meet and provide? | y | y | Intent needs clarification | Contracting | 4/14/25 | |||||
| 33 | Part 3 | D50 | page 285 | What is the requirement for site lighting at the BESS storage area? LED on light pole? Do these lights need to on all night and programed with sunlight control? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 34 | Part 3 | D50 | page 287 | Is a 10' high chain linked security fence with IDS intrusion detection devices required for the BESS storage areas? Is there a security requirement for motion detection for intrusion detection required? | y | y | Intent needs clarification | Civil Engineering | 4/14/25 | |||||
| 35 | Part 3 | D50 | page 287 | If security fences are required around the BESS storage, are the fences to be grounded/bonded? | y | y | Intent needs clarification | Civil Engineering | Yes, the security fences are required, and they require grounding and bonding. | 4/14/25 | 5/8/25 | N/A | ||
| 36 | Part 3 | D50 | page 287 | Are there requirements for ACS Access control systems at the BESS storage area gate/fence entrances that require access control swipe readers? If so who is the base ACS controls integrator with phone and contact? Is this contract only responsible for conduit, pull wire, end unit enclosures for the devices where the government hires 3rd party contractor to install? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 37 | Part 3 | D50 | page 286 | What are the specifications and requirements for the Advanced Metering and infrastructure? | y | y | Intent needs clarification | Electrical Engineering | Utilize specification Sections 26 27 13.10 30 Electric Meter and 26 27 14.00 20 Electricity Metering for the Advanced Metering and infrastructure. | 4/14/25 | 5/8/25 | N/A | ||
| 38 | Part 3 | D50 | page 288 | Under BESS safety, what are the types of alarm conditions that shall be annunciated? What are the needs and concerns to monitor for safety for the base? | y | y | Intent needs clarification | Electrical Engineering | All alarms that the BESS would alarm should report back to the Cogen systems. All fire alams should trigger back to the base fire alarm system. | 4/14/25 | 5/8/25 | N/A | ||
| 39 | Part 3 | G40 | page 304 | States contractor shall guarantee annual BESS savings as established in the design period of O&M performance. Is this the 2 year O&M and warranty period? What are the governments savings goals in relation to existing ESPC contracts that have to be interfaced with this contract? | y | y | Intent needs clarification | Contracting | No ESPC interface to savings. Savings is based on two years of operation to ensure that the systsem is functioning properly and providing cost savings. | 4/14/25 | 5/8/25 | N/A | ||
| 40 | Part 3 | G40 | page 296 | Addressing fire safety measures for BESS storage devices and concerns for run away fire due to lithium batteries, what are the base concerns in reguards to this safety concerns? It has been seen and noted that BESS manufacturers best practice is to allow lithium battery units 'burn out' without water suppression. Has the base considered these concerns? Is water suppression at the site going to be required? If yes, where will the water come from and fire hydrant requirements? Can you provide drawings that show the base water line for existing service if water suppression is required by the base? | y | y | Intent needs clarification | Fire Protection | Assume that a water based fire suppression system will not be required. Refer to UFC 3-600-01 for fire hydrant requirements. See Attachment #1 Utility drawings as attached. | 4/14/25 | 5/8/25 | N/A | ||
| 41 | Part 3 | D50 | page 289 | What are the base requirements in case for run away detection and mitigation that contractor and BESS manufacturer is to provide in this design? | y | y | Intent needs clarification | Fire Protection | Refer to Part 3, Section D40 which requires the contractor's QFPE to perform a Hazard Mitigation Analysis. | 4/14/25 | 5/8/25 | N/A | ||
| 42 | Part 3 | D50 | page 289 | Under BESS item 4, can a single visible MV disconnect be acceptable? | y | y | Intent needs clarification | Electrical Engineering | The disconnect switch in item 4 is refered to uitility interconnection requirement. An additional disconnect switch will be required for isolating each BESS unit. | 4/14/25 | 5/8/25 | N/A | ||
| 43 | Part 3 | G40 | page 299 | This section indicates all electrical distribution equipment shall include a medium-voltage sectional switch. What are the requirements (clarify) for the sectionalizing switch is and if it is required to provide a dedicated way for each transformer. | y | y | Intent needs clarification | Electrical Engineering | The Design-Build Electrical DOR will be specified in the electrical distribution equipment in accordance to the UFC and code standards requirements. | 4/14/25 | 5/8/25 | N/A | ||
| 44 | Part 3 | G40 | page 299 | Is a switchgear or a switchboard need (clarify) to be provided and what UL standard needs to be followed? | y | y | Intent needs clarification | Electrical Engineering | Yes, switchgear/switchboard needs to be provided in accordance with UFC and UL standards. | 4/14/25 | 5/8/25 | N/A | ||
| 45 | Part 3 | D50 | page 301 - 302 | The project requirement is to remove the existing 24 strand fiber optic loop, pole mounted cabling base wide primary system with new 288 pr fiber optic (FIO) cabling. And secondary fiber optic cabling from the primary to existing 54 PV inverter locations. What are the existing conditions now where the FIO attaches the inverters? Are the FIO lines overhead swung from primary pole to the PV inverters? Are the FIO lines from primary to PV inverters underground? What is the requirement under this contract to connect new FIO secondary from primary poles, underground ductbank or overhead swung? | y | y | Intent needs clarification | Electrical Engineering | No PV systems are currently connected to fiber optic cables. Contractor is responsible for connection points and fiber terminations. The new primary 288 fiber optic cables shall be installed on overhead system and the secondary runs from the primary runs to PV inverter will be in concrete encased underground system. | 4/14/25 | 5/8/25 | N/A | ||
| 46 | Part 3 | D50 | page 301 - 302 | Contractor is requesting existing information on the 54 PV inverter locations. For pricing and BOD, existing condition connections, inverter type, etc. is needed for engineers. Will you provide as-builts or data/info on the inverters? How they are attached into existing FIO lines and where? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 47 | Part 3 | D50 | page 303 | Who is the base integrator and contact for the existing Rockwell systems? | y | y | Intent needs clarification | Electrical Engineering | There is no Rockell contact information available. Base will supply integration and existing Rockwell programming. | 4/14/25 | 5/8/25 | N/A | ||
| 48 | Part 3 | D50 | page 303 | This section indicates that meters will be added to the 54 PV systems. What are the meter requirements and specifications? | y | y | Intent needs clarification | Electrical Engineering | Meter should be met UFC and Base Requirements. The Design Build Electrical DOR will need to edit specification sections 26 27 13.10 30 Electric Meter and 26 27 14.00 20 Electricity Metering per project requirements. | 4/14/25 | 5/8/25 | |||
| 49 | Part 3 | D50 | page 303 | What are the requirements and specifications for the HMI screen and systems for the BESS? | y | y | Intent needs clarification | Electrical Engineering | Contractor will create the screen on the current system and will update all Rockwell progams at each plant. New screen will be consistent with the current one. | 4/14/25 | 5/8/25 | N/A | ||
| 50 | Part 3 | D50 | page 760 | The inverter list indicates many devices that have some type of error or problem. Can you confirm this contract is not to replace or repair any of the existing PV invertors? As that would be responsibility of the PC system provider-operator? | y | y | Intent needs clarification | Electrical Engineering | Confirm, there are no existing inverter needed to be replaced. | 4/14/25 | 5/8/25 | N/A | ||
| 51 | Part 3 | D50 | page 760 | Should existing PV inverters cannot be integrated into this BESS system, they will need to be replaced. In this situation, will the replacement of inverters would be a pre-existing condition and change order priced accordingly with the contractor upon government approval? | y | y | Intent needs clarification | Electrical Engineering | Confirm, contractor is responsible for metering and output of the PV sytsem control to the BESS. Contractor not responsible for inverter operations. | 4/14/25 | 5/8/25 | N/A | ||
| 52 | Part 3 | D50 | page 760 | This solicitation proposal response will assume that all inverters, whether new or old, will have the capacity to be integrated into the BESS system and that the contractor price shall not include cost of replacements, known or unknown. Can you confirm this statement? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | |||||
| 53 | Part 3 | page 842 - 843 | Can you confirm that this contract design is to include new transformers at Substation AA and Gillespie as they seem to be undersized for the proposed BESS design? | y | y | Intent needs clarification | Electrical Engineering | There are no new transformers needed to be upgraded at Substation AA and Gillespie subsation. | 4/14/25 | 5/8/25 | N/A | |||
| 54 | Part 3 | page 842 - 843 | Per the decision memorandum dated 12-19-22 it is stated that walls and shade (from view) structures are required around BESS. Is this required even if the 100' explosive standoff distances can be obtained? | y | y | Intent needs clarification | Structural Engineering | 4/14/25 | ||||||
| 55 | Part 3 | page 759 | The existing PV location indicates that some of the PV systems have not been included and are awaiting the interconnect agreement. IS this drawing up to date? How does this impact this contracts design in MWH hours? Are these shown / noted systems already calculated into the RFP loads? If not will they need to be considered after award / design? If Yes, and there is no known information for design, will this be a change order to the contract? | y | y | Intent needs clarification | Electrical Engineering | PV locations are all online. Connections to all PV systems are required. The MWH hours is not impact to contract design. These loads already considered in the RFP loads. | 4/14/25 | 5/8/25 | N/A | |||
| 56 | Part 3 | plumbing | Is there a requirement or need for domestic water at the BESS locations? Possibly for workers drinking water? Or maybe Emergency eye wash? If yes, where will the domestic water come and be provided for? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | ||||||
| 57 | Part 3 | plumbing | Is there a requirement for sanitary service, toilets, fixtures at the BESS locations? Possibly for workers? If so, where will the sanitary come from and connect? | y | y | Intent needs clarification | Mechanical Engineering | 4/14/25 | ||||||
| 58 | Part 3 | Signage | What are the base requirements for BESS signage at the areas which is not going to be provided in the base design guide? What types and message for signs? | y | y | Intent needs clarification | Architectural-related | The signage is required for high voltage, hazardous areas and etc. at the BESS areas in accordance with MCAGCC 29 Palms BEAP and A-E Design Manual in Part 6 of the RFP. | 4/14/25 | 5/8/25 | N/A | |||
| 59 | Part 3 | B10 | Foundation, page 270 | Does this RFP require all new geotechnical soils testing, drilling, soils determination, site test drilling, sample pit digs with geotechnical report for design? Or can previous and existing soils reports and test finding be provided and used for the foundation designs. It seems the as-built drawings for the microgrid design utilize older soils borings and testing data for the design. | y | y | Intent needs clarification | Structural Engineering | In accordance with the RFP, the Contractor's Geotechnical Engineer is required to evaluate the provided information and any additional information obtained and prepare a report as required by FC 1-300-09N, with associated references. As a minimum, the successful bidder's Geotechnical Engineer must perform additional subsurface exploration and supplementary laboratory testing as necessary to support the design concept. The successful bidder's Geotechnical Engineer must prepare a report including recommendations for foundation and pavement design. | 4/14/25 | 5/8/25 | N/A | ||
| 60 | Part 3 | Page 267 | Under site utilities there is reference to see attached RFP drawings for sewer, water, storm water, water, gas, and electric. We cannot find these GIS type drawings? Can you provide existing utility drawings asap by amendment in order to develop our proposal BOD and price? | y | y | Intent needs clarification | Civil Engineering | 4/14/25 | ||||||
| 61 | Part 3 | Page 267 | Topographic existing GIS or drawings for the site locations. Can you provide existing drawings with topo and site conditions asap by amendment in order to develop our proposal BOD and price? | y | y | Intent needs clarification | Civil Engineering | Contractor is responsible to proform topographic servey per RFP. | 4/14/25 | 5/8/25 | N/A | |||
| 62 | Part 3 | page 266 | 2.6 states BESS shall be configured as a component of a future microgrid on base. What are those requirements to be considered in this contractor design? What are the parameters, power requirements, etc.? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | ||||||
| 63 | Part 3 | page 266 | 2.1 mission statement notes a different size of 10.6MH hour rating than in other sections showing 10MW. Can you confirm correct size requirement? | y | y | Intent needs clarification | Contracting | 4/14/25 | ||||||
| 64 | Part 3 | C20 | page 294 | What are the base requirements for access roads to the BESS sites? Is the site access road to be asphalt paving are gravel paved roads? | y | y | Intent needs clarification | Civil Engineering | Asphalt paved access road to be provided to the BESS sites. | 4/14/25 | 5/8/25 | N/A | ||
| 65 | Part 3 | D40 | page 296 | The preference to BESS for the base is for two BESS locations, one at Cogen 1 and other at Cogen 2. The RFP provides locations on page 749 and 750. The location for the AA BESS provides access reasonably from Truax Drive where site access road entrance is very manageable during construction and long term services after construction. However, the Gillespie BESS RFP location is across the concrete drainage ditch and in an area that is NOT accessible from Gillespie Road. It appears a road would have to be constructed 13th Street, across and along the concrete culvert drainage ditch, navigating the existing hilly, rocky, and sand terrain. Somewhere around 2,200 LF. There is a better location for Gillespie BESS that will save government budget in construction of access roads. Does contractor have the freedom / permission to recommend other site location solution for this BESS location? Would proposing alternate location solutions for either BESS location be acceptable or would it be deemed non-compliant as the RFP provides two location map locations? | y | y | Intent needs clarification | Civil Engineering | The locations of two new BESS sites should be based on the ones on the Location map Attachment E-CATEX, in Part 6 of the RFP. RFP states access from near Cogen 2 across culvert with a bridge. | 4/14/25 | 5/8/25 | N/A | ||
| 66 | Part 2 | spec 01 33 10.05 20 | What is the governments/Navy intended design phase submission? How many design submissions? Are they typical 3 phase submissions where per centages at 35%, 95%, and 100% DD submittal? | y | y | Intent needs clarification | Contracting | There are four submissions required for the design phase. It consists of Premliminary/Concept Design submittals (35%), Design Development Submittals (35%-65%), Pre-final Design submittals (100%) and Final Design Submittal, in accordance with the FC 1-300-09N. | 4/14/25 | 5/8/25 | N/A | |||
| 67 | Part 2 | spec 01 33 10.05 20 | Can you confirm that the government/Navy design review period will typically be 30 calendar days after submission receipt? | y | y | Intent needs clarification | Contracting | The government review periods will be 30 days after the submission receipt, per Specification Section 01 33 10.05 20, paragraph 2.2.2 | 4/14/25 | 5/8/25 | N/A | |||
| 68 | Part 2 | spec 01 33 10.05 20 | Will the government/Navy require a design phase meeting discussion to cover a design phase submission comments prior to moving to next design phase submission? | y | y | Intent needs clarification | Contracting | Yes, the government requires a design phase meeting discussion after each design submission prior to next submission. | 4/14/25 | 5/8/25 | N/A | |||
| 69 | Part 2 | spec 01 35 26 | Can the SSHO have other duties and be dual hat role from either superintendent or QAC staff? | y | y | Intent needs clarification | Contracting | No, the SSHO can not have other duties, such as QC Manager or Superintendent. | 4/14/25 | 5/8/25 | N/A | |||
| 70 | Part 2 | spec 01 45 00.05 20 | Can the QCM manager dual hat role of SSHO? | y | y | Intent needs clarification | Contracting | No, the QCM manager can not be dual hat as SSHO. | 4/14/25 | 5/8/25 | N/A | |||
| 71 | Part 2 | Project Staff | Is the site staffing requirement for minimum of three staff: 1) Superintendent 2) SSHO and 3) QCM? | y | y | Intent needs clarification | Contracting | Yes, The site staffing should have a minimum of three staff: 1) Superintendent 2) SSHO and 3) QCM. | 4/14/25 | 5/8/25 | N/A | |||
| 72 | Part 3 | Page 256 | The project description notes that contractor must provide support to government which is obtaining the modifications to the interconnection agreement for the BESS. Is the interconnect agreement modifications the sole responsibility of the base/ government where contractor only needs to provide input and help? | y | y | Intent needs clarification | Contracting | Yes, the contractor needs to provide inputs and supports to the Base for interconnection agreement modification. | 4/14/25 | 5/8/25 | N/A | |||
| 73 | Part 3 | Page 256 | Can you provide scale PDF drawings in 24"x36" or larger of entire base in GIS or a format where we can gather accurate lenghts and quanities for the new primary and secondary fiber runs around the base in amendment asap? | y | y | Intent needs clarification | Civil Engineering | 4/14/25 | ||||||
| 74 | Part 3 | Page 258 | Statement "MCAGCC operates a total of 9.2 MW of solar photovoltaics (PV) throughout their distribution system. Only 1.2 MW of the PV is controllable while the remaining 8 MW must be controlled at the inverter via autonomous settings or manual switching. Approximately 2.75 MW of PV at MCAGCC is under PPA or ESPC contracts and will require additional coordination with those contractors. Will the 8MW that is currently controlled at the inverter by autonomous settings or manual switching need be changed to controllable, assuming that would be at the CCS, by this contract? Or will that be completed by PPA or ESPC contracts? Can the government provide further details and clarification on this statment for RFP scope clarification? | y | y | Intent needs clarification | Electrical Engineering | 4/14/25 | ||||||
| 75 | If "Others" - include info under Column E Clarification Request | Solictation date response is set for May 15 at 2PM. RFI closing date is set for April 17 at 5PM. There is a huge lift of working through the RFI government reponses when provided by amendment. From that, there are lots of information and project requirements that will be reviewed. Once we receive RFIJ reponses, the team needs time to process with team and lower tier members to create the final proposed basis of design narrative and pricing. We are requesting an extension of time for this proposal to at minimum of May 29th or 30th. WIll the government amend and extend the submission extension time? | y | y | Intent needs clarification | Contracting | The RFI deadline for submission has been amended to Tuesday, April 29, 2025. The Proposal due date has been amended to Tuesday, June 3, 2025, Please refer to Amendment 0009. | 4/14/25 | 4/17/25 | 9 | ||||
| 76 | If "Others" - include info under Column E Clarification Request | For creating a prjoect prelimnary schedule for pricing and narrative, when does the government intend to award this project and expected notice - to - proceed date? | y | y | Intent needs clarification | Contracting | The Government intends to award this project in quarter four of Fiscal Year 2025. | 4/14/25 | 4/17/25 | 9 | ||||
| 77 | Part 3 | G40 | G403010 | Please confirm "Provide 288 strand single mode fiber optic cable between Central Control System (CCS) and the BESS controls shed." vs "This project will replace the current 24 strand overhead loop, located on existing power and communications poles and be a minimum of 288 pair cable." | N | N | Intent needs clarification | Electrical Engineering | The intent of this project will replace the current 24 strand overhead | |||||
| loop, located on existing power and communications poles with 288 strand single mode fiber optic cables. See Part 3, G403010 INDUSTRIAL CONTROL SYSTEM (ICS) for more details. | 4/15/25 | 5/8/25 | N/A | |||||||||||
| 78 | Part 3 | Chapter-1 | P 257 of 1678 | Shade structure clarification. P 257 v P269 of 1678. Steel structure appears to be required, however, extent of steel structure is not clear. BESS seem to be designed to ignite upwards so a steel structure over the BESS may have unintended consequences vs steel posts with a fabric shade structure. Are we allowed to consider tradeoffs between fabric and metal for the deck / horizontal portion of the shade structure during design? | N | N | Intent needs clarification | Fire Protection | Refer to Part 3, Section D40 which requires the contractor's QFPE to perform a Hazard Mitigation Analysis. | 4/15/25 | 5/8/25 | N/A | ||
| 79 | Part 3 | Chapter-1 | Section 1.3, P 263 of 1678 vs P302 of 1678 | Please provide more details regarding adding fiber and controls to each PV system where substantial underground conduits may be needed between overhead poles and facility hosting solar PV. Can we assume there are existing conduits that can be utilized and no new underground conduits are needed? If we need to install new conduits, can we get clarifications on where and how long? | Y | N | There is no existing underground conduits available. The 288 strand fiber optic cables for primary loops should be overhead system and the secondary loops should be concrete encased underground system, see paragraph G403001 in Part 3 of the RFP. | 4/15/25 | 5/8/25 | N/A | ||||
| 80 | Part 3 | G40 | G403010 | Has it been verified the existing Rockwell system has sufficient capacity to accommodate the expansion / inclusion of 54 new solar sites and the multiple BESS modes of operation? | Y | N | Other; Please specify in the next column | Reliance on legacy systems per RFP | Electrical Engineering | Confirm, the exisign Rockwell system has enough capacity to accommodate the expansion / inclusion of 54 new solar sites and the multiple BESS modes of operation. | 4/15/25 | 5/8/25 | N/A | |
| 81 | If "Others" - include info under Column E Clarification Request | if Others include info under Column E | SF30 | Amendment 0006, SF 30, " This solicitation includes FAR clause 52.225-11, Buy American Act – Construction Materials Under Trade Agreements and FAR 52.225-12, Notice of Buy American Act Requirement – Construction Materials Under Trade Agreements." Please clarify intent for inclusion of this as it relates to lithium ion BESS technology and what level of documentation is necessary to meet intent. | Y | N | Intent needs clarification | Component vs Assembly country of origin requirements, inclusion of FTA, etc | Contracting | 4/15/25 | ||||
| 82 | Part 3 | D50 | D50909006 | RFP Part 3, Section D50909006 Energy Management Control System under BESS Safety states to “Set and adjust circuit protection devices according to a short circuit and coordination study.” Please provide short circuit/power coordination study/clarify if a study needs to be conducted to evaluate the impact of integrating the BESS to the existing (microgrid) distribution grid and the associated implications on the operation strategy including the mode transitions and black-starting sequence. | Y | Y | Intent needs clarification | Electrical Engineering | The existing coordination study will be provided to the awarded contractor. However, the new coordination study is required for accommodating the new operation of the additive loads. | 4/21/25 | 5/8/25 | N/A | ||
| 83 | Part 3 | G40 | G403010 | RFP Part 3, Section G403010 Industrial Control Systems (ICS), states an "up-to-date SKM model of existing electrical distribution system will be provided to contractor." Please provide an up-to-date SKM model of the existing electrical distribution system. | Y | Y | Attachments are referenced but missing/not provided | Electrical Engineering | The SKM model will be provided to the awarded contractor. | 4/21/25 | 5/8/25 | N/A | ||
| 84 | Part 1 | Amendment 0008, under Section 7, Information Concerning Cost Limitations states that “the construction cost limitation (CCL) is $43,000,000 available for Base Item 0001.” Please confirm the CCL is $43,000,000 for Base Item 0001 only. | Y | Y | Intent needs clarification | Contracting | The CCL is $43,000,000 for the overall budget of Base Bid + Option 1 + Option 2. | 4/21/25 | 5/8/25 | N/A | ||||
| 85 | Part 3 | Chapter-1 | Part 3, under 1.0 Project Description, states that “the project also includes a change to the interconnection agreement with SCE. This change is expected to reduce the minimum import from 850 kW to 250 kW.” Please clarify when the lower SCE import setting will be implemented. | Y | Y | Intent needs clarification | Electrical Engineering | The lower SCE import setting will be implemented prior to the end of the project construction. | 4/21/25 | 5/8/25 | N/A | |||
| 86 | Part 3 | D50 | D509006 | Please clarify if the HMI/Historian servers are to be upgraded. | Y | Y | Intent needs clarification | Electrical Engineering | The HMI/Historian server is not required to be upgraded, unless it is needed for the BESS system changes. | 4/21/25 | 5/8/25 | N/A | ||
| 87 | Part 6 | if Others include info under Column E | Part 6 Attachment F, Final As-Built Design Specification 40 95 00 2.1 states that "the contractor provide a central microgrogrid control system residing on the existing Rockwell programmable logic controllers (PLC) located in the heating plants." Please clarify the form of the existing PLC code (ladder logic, structured text, function blocks, etc.) and if all PLC code will need to be standardized. | Y | Y | Intent needs clarification | Electrical Engineering | The existing PLC for Cogen 1 ladder logic and Cogen 2 is function block programmed. | 4/21/25 | 5/8/25 | N/A | |||
| 88 | Part 3 | Chapter-1 | Part 3 - 1.0 Project Description notes that there are 54 existing PV systems, however, Attachment D only identifies 50 PV locations. Please identify the four missing PV locations. |
G403001 requires 24 strand fiber optic cables to the secondary loops / PV systems. Do each of the locations shown in Attachment D have available conduit infrastructure for the new 24 strand fiber? If no infrastructure is available, please identify the locations and indicate whether new installations should be underground or overground. Additionally, please confirm if existing conduits, fiber or vaults may be reused for communications and controls, or if all infrastructure must be new.
| Y | Y | Intent needs clarification | Electrical Engineering | See the response to RFI 79. | 4/21/25 | 5/8/25 | N/A | |||||||
| 89 | Part 3 | Chapter-1 | 1.2.2.1 | RFP Part 3, under 1.2.2.1 Grid-connected microgrid mode states that there is a need for data communications to each PV inverter. Additionally, Section G40 under the system description states that some PV inverters are newer, and some are older. Please provide the data protocol for each existing inverter. | Y | Y | Intent needs clarification | Electrical Engineering | The control function will be from metering and not directly tied into the inverters. | 4/21/25 | 5/8/25 | N/A | ||
| 90 | Part 3 | G40 | G403010 | RFP Part 3 under G403010 Industrial Control Systems (ICS) states that "all PV will be totalized and reported back through this TRU using existing Rockwell integrator to JCI Metasys totalizer with 4-20ma output scaled to report to the RTU." Please clarify if Rockwell is sole sourced for this project. If they are, please provide justification on sole source. If they are not, please provide a list of acceptable integrators. | Y | Y | Intent needs clarification | Electrical Engineering | 4/21/25 | |||||
| 91 | Part 3 | D40 | D4010 | Please identify the manufacturer of the existing fire life safety devices and if there is a standard manufacturer required to be used for consistency across the base. | Y | Intent needs clarification | Fire Protection | There is no known J&A justifying a standard manufacturer to be used across the Base. | 4/21/25 | 5/8/25 | N/A | |||
| 92 | Part 3 | D50 | Please provide existing as-builts for the underground feeders throughout the site (substations and PV arrays). | Y | Y | Intent needs clarification | Electrical Engineering | 4/21/25 | ||||||
| 93 | Part 3 | Chapter-1 | RFP Part 3, under chapter 1, states that the project will include "adding meters, on-off control, and data acquisition to 54 existing PV systems; and modifying programming of the existing Central Control System (CCS) to integrate BESS with existing microgrid operations." Please confirm if the existing SCADA historian is capable of accepting new BESS and PV metering points, or if upgrades are required. | Y | Y | Intent needs clarification | Electrical Engineering | Confirm, the exisign SCADA historian is capable of accepting new BESS and PV metering points. | 4/21/25 | 5/8/25 | N/A | |||
| 94 | Part 3 | Chapter-1 | RFP Part 3, under chapter 1, states that the project will include "replacement and modification of the existing fiber optic cable by installing a new fiber optic cable . . . resulting [in a] a loop that connects all existing cogen, microgrid, PV and BESS systems." Please identify locations of the existing PV inverters that require new fiber connections. Additionally, for each inverter requiring integration please provide the manufacturer, model, and system size. | Y | N | Intent needs clarification | Electrical Engineering | No existing fiber runs for the PV system. See Attachment D - Current PV System Inventory as attached for existing PV inverter location and Attachment I - Proposed Utility Fiber Configuration in Part 6 of the RFP for proposed new fiber cable runs. | 4/21/25 | 5/8/25 | N/A | |||
| 95 | Part 3 | Chapter-1 | 1.2.2.5 | RFP Part 3, under Chapter 1.2.2.5 Winter months, states that "BESS BMS must be aware that PV inverters have been intentionally switched off or curtailed." Please confirm if the PV inverters are already programmed for remote on/off/curtailment from the control system. | Y | Intent needs clarification | Electrical Engineering | No, the PV inverters are not programmed for remote on/off/curtailment form the control system. | 4/21/25 | 5/8/25 | N/A | |||
| 96 | Part 3 | D20 | D209002 | RFP Part 3, under D209002 Acid Waste Systems states to "Provide acid waste system in the Battery Energy Storage System (BESS)." Please confirm if acid containment is required for the BESS, or if this applies only to lead-acid systems and is not applicable to lithium-ion chemistry. | Y | Y | Intent needs clarification | Mechanical Engineering | Contractor should comply with all requirements by UFC 3-520-05, especially section 3-2 Consider lithium batteries as hazardous. Comply with NFPA 70, National ElectricalCode (NEC), NFPA 1, Fire Code, NFPA 704, Standard System for the Identification of the Hazards of Materials for Emergency Response, and NAVSEA S9310-AQ-SAF-010 for battery room design requirements. Comply with the additional requirements provided in the following sections and minimum safety requirements in Figure 3-1. | 4/21/25 | 5/8/25 | N/A | ||
| 97 | Part 2 | if Others include info under Column E | RFP Part 2, under Spec Section 01 45 35 1.2 states that "Structural observations will be performed separately by the Government by the Structural Engineer of Record on the Contractor's Design-Build team". 1.3.10 states that "A registered design professional contracted by the Government as an A/E retained by the Prime Contractor". Please clarify who is hiring the SER for special inspections. | Y | Y | Conflicting Information | Structural Engineering | 4/21/25 | ||||||
| 98 | Part 1 | if Others include info under Column E | RFP Part 1, section 17 indicate that products must meet the Buy American Act. Please confirm if NAVFAC will accept the following exceptions to the Buy American Requirements as outlined in FAR 25.202 (https://www.acquisition.gov/far/25.202): FAR 25.202(a)(2), FAR 25.202(a)(3), and FAR 25.202(c). | Y | N | Other; Please specify in the next column | Contracting | 4/21/25 | ||||||
| 99 | Part 1 | if Others include info under Column E | RFI response issued in Amendment 0009 states that a revised SF1442 form is provided. The SF1442 provided is dated 22-Apr-2024 and has conflicting information on The Construction Limitation. Please confirm the CCL is $43,000,000 as stated in Enclosure 1 RFP part 1. | Y | N | Outdated Reference | Contracting | 4/21/25 | ||||||
| 100 | Part 6 | if Others include info under Column E | Attachment B | The proposed BESS locations shown on CG-002 (page 748 of 1678), conflict with the proposed BESS Areas shown on pages 749 and 750. Please clarify the proposed BESS locations. | Y | N | Conflicting Information | Civil Engineering | Please refer to pages 749-750 and page 782-783 of the RFP for BESS locations. | 4/21/25 | 5/8/25 | N/A |
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